New module mediawiki

modules/mediawiki.py

@@ -0,0 +1,92 @@
+# coding=utf-8
+
+"""Use MediaWiki API to get pages"""
+
+import json
+import re
+import urllib.parse
+import urllib.request
+
+from hooks import hook
+from tools.web import striphtml
+
+nemubotversion = 3.4
+
+def get_raw_page(site, term, ssl=False):
+    # Built IRL
+    url = "http%s://%s/w/api.php?format=json&redirects&action=query&prop=revisions&rvprop=content&titles=%s" % (
+        "s" if ssl else "", site, urllib.parse.quote(term))
+    print_debug(url)
+
+    # Make the request
+    raw = urllib.request.urlopen(url)
+    data = json.loads(raw.read().decode())
+
+    for k in data["query"]["pages"]:
+        return data["query"]["pages"][k]["revisions"][0]["*"]
+
+def get_unwikitextified(site, wikitext, ssl=False):
+    # Built IRL
+    url = "http%s://%s/w/api.php?format=json&action=expandtemplates&text=%s" % (
+        "s" if ssl else "", site, urllib.parse.quote(wikitext))
+    print_debug(url)
+
+    # Make the request
+    raw = urllib.request.urlopen(url)
+    data = json.loads(raw.read().decode())
+
+    return data["expandtemplates"]["*"]
+
+
+def strip_model(cnt):
+    # Strip models at begin and end: mostly useless
+    cnt = re.sub(r"^(({{([^{]|\s|({{(.|\s|{{.*?}})*?}})*?)*?}}|\[\[(.|\s|\[\[.*?\]\])*?\]\])\s*)+", "", cnt)
+    #cnt = re.sub(r"({{([^{]|\s|({{(.|\s|{{.*?}})*?}})*?)*?}}\s?)+$", "", cnt)
+
+    # Strip HTML comments
+    cnt = re.sub(r"<!--.*?-->", "", cnt)
+
+    # Strip ref
+    cnt = re.sub(r"<ref.*?/ref>", "", cnt)
+    return cnt
+
+def parse_wikitext(site, cnt, ssl=False):
+    for i,_,_,_ in re.findall(r"({{([^{]|\s|({{(.|\s|{{.*?}})*?}})*?)*?}})", cnt):
+        cnt = cnt.replace(i, get_unwikitextified(site, i, ssl), 1)
+
+    # Strip [[...]]
+    cnt, _ = re.subn(r"\[\[([^]]*\|)?([^]]*?)\]\]", r"\2", cnt)
+
+    # Strip HTML tags
+    cnt = striphtml(cnt)
+
+    return cnt
+
+def irc_format(cnt):
+    cnt, _ = re.subn(r"(?P<title>==+)\s*(.*?)\s*(?P=title)\n+", "\x03\x16" + r"\2" + " :\x03\x16 ", cnt)
+    return cnt.replace("'''", "\x03\x02").replace("''", "\x03\x1f")
+
+def get_page(site, term, ssl=False):
+    return strip_model(get_raw_page(site, term, ssl))
+
+
+@hook("in_PRIVMSG_cmd", "mediawiki")
+def cmd_mediawiki(msg):
+    """Read an article on a MediaWiki"""
+    if len(msg.cmds) < 3:
+        raise IRCException("indicate a domain and a term to search")
+
+    return Response(msg.sender,
+                    get_page(msg.cmds[1], " ".join(msg.cmds[2:])),
+                    channel=msg.receivers)
+
+
+@hook("in_PRIVMSG_cmd", "wikipedia")
+def cmd_wikipedia(msg):
+    if len(msg.cmds) < 3:
+        raise IRCException("indicate a lang and a term to search")
+
+    return Response(msg.sender,
+                    get_page(msg.cmds[1] + ".wikipedia.org", " ".join(msg.cmds[2:])),
+                    channel=msg.receivers,
+                    line_treat=lambda line: irc_format(parse_wikitext(site, line, ssl)))